TP_NVRAM_POS_LEVEL_VOLUME = 0,
};
+/* Misc NVRAM-related */
+enum {
+ TP_NVRAM_LEVEL_VOLUME_MAX = 14,
+};
+
/* ACPI HIDs */
#define TPACPI_ACPI_HKEY_HID "IBM0068"
+#define TPACPI_ACPI_EC_HID "PNP0C09"
/* Input IDs */
#define TPACPI_HKEY_INPUT_PRODUCT 0x5054 /* "TP" */
u32 hotkey_tablet:1;
u32 light:1;
u32 light_status:1;
- u32 bright_16levels:1;
u32 bright_acpimode:1;
+ u32 bright_unkfw:1;
u32 wan:1;
u32 uwb:1;
u32 fan_ctrl_status_undef:1;
unsigned int led;
};
+/* brightness level capabilities */
+static unsigned int bright_maxlvl; /* 0 = unknown */
+
#ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES
static int dbg_wlswemul;
static int tpacpi_wlsw_emulstate;
return 0;
}
+static inline bool __pure __init tpacpi_is_lenovo(void)
+{
+ return thinkpad_id.vendor == PCI_VENDOR_ID_LENOVO;
+}
+
+static inline bool __pure __init tpacpi_is_ibm(void)
+{
+ return thinkpad_id.vendor == PCI_VENDOR_ID_IBM;
+}
/****************************************************************************
****************************************************************************
*/
static acpi_handle root_handle;
+static acpi_handle ec_handle;
#define TPACPI_HANDLE(object, parent, paths...) \
static acpi_handle object##_handle; \
- static acpi_handle *object##_parent = &parent##_handle; \
- static char *object##_path; \
- static char *object##_paths[] = { paths }
-
-TPACPI_HANDLE(ec, root, "\\_SB.PCI0.ISA.EC0", /* 240, 240x */
- "\\_SB.PCI.ISA.EC", /* 570 */
- "\\_SB.PCI0.ISA0.EC0", /* 600e/x, 770e, 770x */
- "\\_SB.PCI0.ISA.EC", /* A21e, A2xm/p, T20-22, X20-21 */
- "\\_SB.PCI0.AD4S.EC0", /* i1400, R30 */
- "\\_SB.PCI0.ICH3.EC0", /* R31 */
- "\\_SB.PCI0.LPC.EC", /* all others */
- );
+ static const acpi_handle *object##_parent __initdata = \
+ &parent##_handle; \
+ static char *object##_paths[] __initdata = { paths }
TPACPI_HANDLE(ecrd, ec, "ECRD"); /* 570 */
TPACPI_HANDLE(ecwr, ec, "ECWR"); /* 570 */
"\\_SB.PCI0.AGP0.VID0", /* 600e/x, 770x */
"\\_SB.PCI0.VID0", /* 770e */
"\\_SB.PCI0.VID", /* A21e, G4x, R50e, X30, X40 */
+ "\\_SB.PCI0.AGP.VGA", /* X100e and a few others */
"\\_SB.PCI0.AGP.VID", /* all others */
); /* R30, R31 */
switch (res_type) {
case 'd': /* int */
- if (res)
+ success = (status == AE_OK &&
+ out_obj.type == ACPI_TYPE_INTEGER);
+ if (success && res)
*(int *)res = out_obj.integer.value;
- success = status == AE_OK && out_obj.type == ACPI_TYPE_INTEGER;
break;
case 'v': /* void */
success = status == AE_OK;
}
if (!success && !quiet)
- printk(TPACPI_ERR "acpi_evalf(%s, %s, ...) failed: %d\n",
- method, fmt0, status);
+ printk(TPACPI_ERR "acpi_evalf(%s, %s, ...) failed: %s\n",
+ method, fmt0, acpi_format_exception(status));
return success;
}
#define TPACPI_ACPIHANDLE_INIT(object) \
drv_acpi_handle_init(#object, &object##_handle, *object##_parent, \
- object##_paths, ARRAY_SIZE(object##_paths), &object##_path)
+ object##_paths, ARRAY_SIZE(object##_paths))
-static void drv_acpi_handle_init(char *name,
- acpi_handle *handle, acpi_handle parent,
- char **paths, int num_paths, char **path)
+static void __init drv_acpi_handle_init(const char *name,
+ acpi_handle *handle, const acpi_handle parent,
+ char **paths, const int num_paths)
{
int i;
acpi_status status;
for (i = 0; i < num_paths; i++) {
status = acpi_get_handle(parent, paths[i], handle);
if (ACPI_SUCCESS(status)) {
- *path = paths[i];
dbg_printk(TPACPI_DBG_INIT,
"Found ACPI handle %s for %s\n",
- *path, name);
+ paths[i], name);
return;
}
}
*handle = NULL;
}
+static acpi_status __init tpacpi_acpi_handle_locate_callback(acpi_handle handle,
+ u32 level, void *context, void **return_value)
+{
+ *(acpi_handle *)return_value = handle;
+
+ return AE_CTRL_TERMINATE;
+}
+
+static void __init tpacpi_acpi_handle_locate(const char *name,
+ const char *hid,
+ acpi_handle *handle)
+{
+ acpi_status status;
+ acpi_handle device_found;
+
+ BUG_ON(!name || !hid || !handle);
+ vdbg_printk(TPACPI_DBG_INIT,
+ "trying to locate ACPI handle for %s, using HID %s\n",
+ name, hid);
+
+ memset(&device_found, 0, sizeof(device_found));
+ status = acpi_get_devices(hid, tpacpi_acpi_handle_locate_callback,
+ (void *)name, &device_found);
+
+ *handle = NULL;
+
+ if (ACPI_SUCCESS(status)) {
+ *handle = device_found;
+ dbg_printk(TPACPI_DBG_INIT,
+ "Found ACPI handle for %s\n", name);
+ } else {
+ vdbg_printk(TPACPI_DBG_INIT,
+ "Could not locate an ACPI handle for %s: %s\n",
+ name, acpi_format_exception(status));
+ }
+}
+
static void dispatch_acpi_notify(acpi_handle handle, u32 event, void *data)
{
struct ibm_struct *ibm = data;
"handling %s events\n", ibm->name);
} else {
printk(TPACPI_ERR
- "acpi_install_notify_handler(%s) failed: %d\n",
- ibm->name, status);
+ "acpi_install_notify_handler(%s) failed: %s\n",
+ ibm->name, acpi_format_exception(status));
}
return -ENODEV;
}
"ACPI backlight control delay disabled\n");
}
-static int __init tpacpi_query_bcl_levels(acpi_handle handle)
-{
- struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
- union acpi_object *obj;
- int rc;
-
- if (ACPI_SUCCESS(acpi_evaluate_object(handle, NULL, NULL, &buffer))) {
- obj = (union acpi_object *)buffer.pointer;
- if (!obj || (obj->type != ACPI_TYPE_PACKAGE)) {
- printk(TPACPI_ERR "Unknown _BCL data, "
- "please report this to %s\n", TPACPI_MAIL);
- rc = 0;
- } else {
- rc = obj->package.count;
- }
- } else {
- return 0;
- }
-
- kfree(buffer.pointer);
- return rc;
-}
-
-static acpi_status __init tpacpi_acpi_walk_find_bcl(acpi_handle handle,
- u32 lvl, void *context, void **rv)
-{
- char name[ACPI_PATH_SEGMENT_LENGTH];
- struct acpi_buffer buffer = { sizeof(name), &name };
-
- if (ACPI_SUCCESS(acpi_get_name(handle, ACPI_SINGLE_NAME, &buffer)) &&
- !strncmp("_BCL", name, sizeof(name) - 1)) {
- BUG_ON(!rv || !*rv);
- **(int **)rv = tpacpi_query_bcl_levels(handle);
- return AE_CTRL_TERMINATE;
- } else {
- return AE_OK;
- }
-}
-
-/*
- * Returns 0 (no ACPI _BCL or _BCL invalid), or size of brightness map
- */
-static int __init tpacpi_check_std_acpi_brightness_support(void)
-{
- int status;
- int bcl_levels = 0;
- void *bcl_ptr = &bcl_levels;
-
- if (!vid_handle) {
- TPACPI_ACPIHANDLE_INIT(vid);
- }
- if (!vid_handle)
- return 0;
-
- /*
- * Search for a _BCL method, and execute it. This is safe on all
- * ThinkPads, and as a side-effect, _BCL will place a Lenovo Vista
- * BIOS in ACPI backlight control mode. We do NOT have to care
- * about calling the _BCL method in an enabled video device, any
- * will do for our purposes.
- */
-
- status = acpi_walk_namespace(ACPI_TYPE_METHOD, vid_handle, 3,
- tpacpi_acpi_walk_find_bcl, NULL, NULL,
- &bcl_ptr);
-
- if (ACPI_SUCCESS(status) && bcl_levels > 2) {
- tp_features.bright_acpimode = 1;
- return (bcl_levels - 2);
- }
-
- return 0;
-}
-
static void printk_deprecated_attribute(const char * const what,
const char * const details)
{
****************************************************************************/
/*************************************************************************
- * thinkpad-acpi init subdriver
+ * thinkpad-acpi metadata subdriver
*/
-static int __init thinkpad_acpi_driver_init(struct ibm_init_struct *iibm)
-{
- printk(TPACPI_INFO "%s v%s\n", TPACPI_DESC, TPACPI_VERSION);
- printk(TPACPI_INFO "%s\n", TPACPI_URL);
-
- printk(TPACPI_INFO "ThinkPad BIOS %s, EC %s\n",
- (thinkpad_id.bios_version_str) ?
- thinkpad_id.bios_version_str : "unknown",
- (thinkpad_id.ec_version_str) ?
- thinkpad_id.ec_version_str : "unknown");
-
- if (thinkpad_id.vendor && thinkpad_id.model_str)
- printk(TPACPI_INFO "%s %s, model %s\n",
- (thinkpad_id.vendor == PCI_VENDOR_ID_IBM) ?
- "IBM" : ((thinkpad_id.vendor ==
- PCI_VENDOR_ID_LENOVO) ?
- "Lenovo" : "Unknown vendor"),
- thinkpad_id.model_str,
- (thinkpad_id.nummodel_str) ?
- thinkpad_id.nummodel_str : "unknown");
-
- tpacpi_check_outdated_fw();
- return 0;
-}
-
static int thinkpad_acpi_driver_read(struct seq_file *m)
{
seq_printf(m, "driver:\t\t%s\n", TPACPI_DESC);
tpacpi_hotkey_send_key(__scancode); \
} while (0)
+ void issue_volchange(const unsigned int oldvol,
+ const unsigned int newvol)
+ {
+ unsigned int i = oldvol;
+
+ while (i > newvol) {
+ TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEDOWN);
+ i--;
+ }
+ while (i < newvol) {
+ TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP);
+ i++;
+ }
+ }
+
+ void issue_brightnesschange(const unsigned int oldbrt,
+ const unsigned int newbrt)
+ {
+ unsigned int i = oldbrt;
+
+ while (i > newbrt) {
+ TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNEND);
+ i--;
+ }
+ while (i < newbrt) {
+ TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME);
+ i++;
+ }
+ }
+
TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_THINKPAD, thinkpad_toggle);
TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNSPACE, zoom_toggle);
TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF7, display_toggle);
TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF8, displayexp_toggle);
- /* handle volume */
- if (oldn->volume_toggle != newn->volume_toggle) {
- if (oldn->mute != newn->mute) {
+ /*
+ * Handle volume
+ *
+ * This code is supposed to duplicate the IBM firmware behaviour:
+ * - Pressing MUTE issues mute hotkey message, even when already mute
+ * - Pressing Volume up/down issues volume up/down hotkey messages,
+ * even when already at maximum or minumum volume
+ * - The act of unmuting issues volume up/down notification,
+ * depending which key was used to unmute
+ *
+ * We are constrained to what the NVRAM can tell us, which is not much
+ * and certainly not enough if more than one volume hotkey was pressed
+ * since the last poll cycle.
+ *
+ * Just to make our life interesting, some newer Lenovo ThinkPads have
+ * bugs in the BIOS and may fail to update volume_toggle properly.
+ */
+ if (newn->mute) {
+ /* muted */
+ if (!oldn->mute ||
+ oldn->volume_toggle != newn->volume_toggle ||
+ oldn->volume_level != newn->volume_level) {
+ /* recently muted, or repeated mute keypress, or
+ * multiple presses ending in mute */
+ issue_volchange(oldn->volume_level, newn->volume_level);
TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_MUTE);
}
- if (oldn->volume_level > newn->volume_level) {
- TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEDOWN);
- } else if (oldn->volume_level < newn->volume_level) {
+ } else {
+ /* unmute */
+ if (oldn->mute) {
+ /* recently unmuted, issue 'unmute' keypress */
TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP);
- } else if (oldn->mute == newn->mute) {
- /* repeated key presses that didn't change state */
- if (newn->mute) {
- TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_MUTE);
- } else if (newn->volume_level != 0) {
- TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP);
- } else {
+ }
+ if (oldn->volume_level != newn->volume_level) {
+ issue_volchange(oldn->volume_level, newn->volume_level);
+ } else if (oldn->volume_toggle != newn->volume_toggle) {
+ /* repeated vol up/down keypress at end of scale ? */
+ if (newn->volume_level == 0)
TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEDOWN);
- }
+ else if (newn->volume_level >= TP_NVRAM_LEVEL_VOLUME_MAX)
+ TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP);
}
}
/* handle brightness */
- if (oldn->brightness_toggle != newn->brightness_toggle) {
- if (oldn->brightness_level < newn->brightness_level) {
- TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME);
- } else if (oldn->brightness_level > newn->brightness_level) {
+ if (oldn->brightness_level != newn->brightness_level) {
+ issue_brightnesschange(oldn->brightness_level,
+ newn->brightness_level);
+ } else if (oldn->brightness_toggle != newn->brightness_toggle) {
+ /* repeated key presses that didn't change state */
+ if (newn->brightness_level == 0)
TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNEND);
- } else {
- /* repeated key presses that didn't change state */
- if (newn->brightness_level != 0) {
- TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME);
- } else {
- TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNEND);
- }
- }
+ else if (newn->brightness_level >= bright_maxlvl
+ && !tp_features.bright_unkfw)
+ TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME);
}
#undef TPACPI_COMPARE_KEY
goto err_exit;
}
- if (thinkpad_id.vendor == PCI_VENDOR_ID_LENOVO) {
+ if (tpacpi_is_lenovo()) {
dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY,
"using Lenovo default hot key map\n");
memcpy(hotkey_keycode_map, &lenovo_keycode_map,
}
/* Do not issue duplicate brightness change events to
- * userspace */
- if (!tp_features.bright_acpimode)
- /* update bright_acpimode... */
- tpacpi_check_std_acpi_brightness_support();
-
+ * userspace. tpacpi_detect_brightness_capabilities() must have
+ * been called before this point */
if (tp_features.bright_acpimode && acpi_video_backlight_support()) {
printk(TPACPI_INFO
"This ThinkPad has standard ACPI backlight "
vdbg_printk(TPACPI_DBG_INIT, "initializing video subdriver\n");
TPACPI_ACPIHANDLE_INIT(vid);
- TPACPI_ACPIHANDLE_INIT(vid2);
+ if (tpacpi_is_ibm())
+ TPACPI_ACPIHANDLE_INIT(vid2);
if (vid2_handle && acpi_evalf(NULL, &ivga, "\\IVGA", "d") && ivga)
/* G41, assume IVGA doesn't change */
if (!vid_handle)
/* video switching not supported on R30, R31 */
video_supported = TPACPI_VIDEO_NONE;
- else if (acpi_evalf(vid_handle, &video_orig_autosw, "SWIT", "qd"))
+ else if (tpacpi_is_ibm() &&
+ acpi_evalf(vid_handle, &video_orig_autosw, "SWIT", "qd"))
/* 570 */
video_supported = TPACPI_VIDEO_570;
- else if (acpi_evalf(vid_handle, &video_orig_autosw, "^VADL", "qd"))
+ else if (tpacpi_is_ibm() &&
+ acpi_evalf(vid_handle, &video_orig_autosw, "^VADL", "qd"))
/* 600e/x, 770e, 770x */
video_supported = TPACPI_VIDEO_770;
else
vdbg_printk(TPACPI_DBG_INIT, "initializing light subdriver\n");
- TPACPI_ACPIHANDLE_INIT(ledb);
- TPACPI_ACPIHANDLE_INIT(lght);
+ if (tpacpi_is_ibm()) {
+ TPACPI_ACPIHANDLE_INIT(ledb);
+ TPACPI_ACPIHANDLE_INIT(lght);
+ }
TPACPI_ACPIHANDLE_INIT(cmos);
INIT_WORK(&tpacpi_led_thinklight.work, light_set_status_worker);
static enum led_access_mode led_supported;
-TPACPI_HANDLE(led, ec, "SLED", /* 570 */
- "SYSL", /* 600e/x, 770e, 770x, A21e, A2xm/p, */
- /* T20-22, X20-21 */
- "LED", /* all others */
- ); /* R30, R31 */
+static acpi_handle led_handle;
#define TPACPI_LED_NUMLEDS 16
static struct tpacpi_led_classdev *tpacpi_leds;
#undef TPACPI_LEDQ_IBM
#undef TPACPI_LEDQ_LNV
+static enum led_access_mode __init led_init_detect_mode(void)
+{
+ acpi_status status;
+
+ if (tpacpi_is_ibm()) {
+ /* 570 */
+ status = acpi_get_handle(ec_handle, "SLED", &led_handle);
+ if (ACPI_SUCCESS(status))
+ return TPACPI_LED_570;
+
+ /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */
+ status = acpi_get_handle(ec_handle, "SYSL", &led_handle);
+ if (ACPI_SUCCESS(status))
+ return TPACPI_LED_OLD;
+ }
+
+ /* most others */
+ status = acpi_get_handle(ec_handle, "LED", &led_handle);
+ if (ACPI_SUCCESS(status))
+ return TPACPI_LED_NEW;
+
+ /* R30, R31, and unknown firmwares */
+ led_handle = NULL;
+ return TPACPI_LED_NONE;
+}
+
static int __init led_init(struct ibm_init_struct *iibm)
{
unsigned int i;
vdbg_printk(TPACPI_DBG_INIT, "initializing LED subdriver\n");
- TPACPI_ACPIHANDLE_INIT(led);
-
- if (!led_handle)
- /* led not supported on R30, R31 */
- led_supported = TPACPI_LED_NONE;
- else if (strlencmp(led_path, "SLED") == 0)
- /* 570 */
- led_supported = TPACPI_LED_570;
- else if (strlencmp(led_path, "SYSL") == 0)
- /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */
- led_supported = TPACPI_LED_OLD;
- else
- /* all others */
- led_supported = TPACPI_LED_NEW;
+ led_supported = led_init_detect_mode();
vdbg_printk(TPACPI_DBG_INIT, "LED commands are %s, mode %d\n",
str_supported(led_supported), led_supported);
TPACPI_THERMAL_TPEC_16 : TPACPI_THERMAL_TPEC_8;
}
} else if (acpi_tmp7) {
- if (acpi_evalf(ec_handle, NULL, "UPDT", "qv")) {
+ if (tpacpi_is_ibm() &&
+ acpi_evalf(ec_handle, NULL, "UPDT", "qv")) {
/* 600e/x, 770e, 770x */
thermal_read_mode = TPACPI_THERMAL_ACPI_UPDT;
} else {
- /* Standard ACPI TMPx access, max 8 sensors */
+ /* IBM/LENOVO DSDT EC.TMPx access, max 8 sensors */
thermal_read_mode = TPACPI_THERMAL_ACPI_TMP07;
}
} else {
lnvram = (nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS)
& TP_NVRAM_MASK_LEVEL_BRIGHTNESS)
>> TP_NVRAM_POS_LEVEL_BRIGHTNESS;
- lnvram &= (tp_features.bright_16levels) ? 0x0f : 0x07;
+ lnvram &= bright_maxlvl;
return lnvram;
}
{
int res;
- if (value > ((tp_features.bright_16levels)? 15 : 7) ||
- value < 0)
+ if (value > bright_maxlvl || value < 0)
return -EINVAL;
vdbg_printk(TPACPI_DBG_BRGHT,
/* --------------------------------------------------------------------- */
+static int __init tpacpi_query_bcl_levels(acpi_handle handle)
+{
+ struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
+ union acpi_object *obj;
+ int rc;
+
+ if (ACPI_SUCCESS(acpi_evaluate_object(handle, NULL, NULL, &buffer))) {
+ obj = (union acpi_object *)buffer.pointer;
+ if (!obj || (obj->type != ACPI_TYPE_PACKAGE)) {
+ printk(TPACPI_ERR "Unknown _BCL data, "
+ "please report this to %s\n", TPACPI_MAIL);
+ rc = 0;
+ } else {
+ rc = obj->package.count;
+ }
+ } else {
+ return 0;
+ }
+
+ kfree(buffer.pointer);
+ return rc;
+}
+
+static acpi_status __init tpacpi_acpi_walk_find_bcl(acpi_handle handle,
+ u32 lvl, void *context, void **rv)
+{
+ char name[ACPI_PATH_SEGMENT_LENGTH];
+ struct acpi_buffer buffer = { sizeof(name), &name };
+
+ if (ACPI_SUCCESS(acpi_get_name(handle, ACPI_SINGLE_NAME, &buffer)) &&
+ !strncmp("_BCL", name, sizeof(name) - 1)) {
+ BUG_ON(!rv || !*rv);
+ **(int **)rv = tpacpi_query_bcl_levels(handle);
+ return AE_CTRL_TERMINATE;
+ } else {
+ return AE_OK;
+ }
+}
+
+/*
+ * Returns 0 (no ACPI _BCL or _BCL invalid), or size of brightness map
+ */
+static unsigned int __init tpacpi_check_std_acpi_brightness_support(void)
+{
+ int status;
+ int bcl_levels = 0;
+ void *bcl_ptr = &bcl_levels;
+
+ if (!vid_handle)
+ TPACPI_ACPIHANDLE_INIT(vid);
+
+ if (!vid_handle)
+ return 0;
+
+ /*
+ * Search for a _BCL method, and execute it. This is safe on all
+ * ThinkPads, and as a side-effect, _BCL will place a Lenovo Vista
+ * BIOS in ACPI backlight control mode. We do NOT have to care
+ * about calling the _BCL method in an enabled video device, any
+ * will do for our purposes.
+ */
+
+ status = acpi_walk_namespace(ACPI_TYPE_METHOD, vid_handle, 3,
+ tpacpi_acpi_walk_find_bcl, NULL, NULL,
+ &bcl_ptr);
+
+ if (ACPI_SUCCESS(status) && bcl_levels > 2) {
+ tp_features.bright_acpimode = 1;
+ return bcl_levels - 2;
+ }
+
+ return 0;
+}
+
/*
* These are only useful for models that have only one possibility
* of GPU. If the BIOS model handles both ATI and Intel, don't use
TPACPI_Q_IBM('7', '5', TPACPI_BRGHT_Q_NOEC), /* X41 Tablet */
};
+/*
+ * Returns < 0 for error, otherwise sets tp_features.bright_*
+ * and bright_maxlvl.
+ */
+static void __init tpacpi_detect_brightness_capabilities(void)
+{
+ unsigned int b;
+
+ vdbg_printk(TPACPI_DBG_INIT,
+ "detecting firmware brightness interface capabilities\n");
+
+ /* we could run a quirks check here (same table used by
+ * brightness_init) if needed */
+
+ /*
+ * We always attempt to detect acpi support, so as to switch
+ * Lenovo Vista BIOS to ACPI brightness mode even if we are not
+ * going to publish a backlight interface
+ */
+ b = tpacpi_check_std_acpi_brightness_support();
+ switch (b) {
+ case 16:
+ bright_maxlvl = 15;
+ printk(TPACPI_INFO
+ "detected a 16-level brightness capable ThinkPad\n");
+ break;
+ case 8:
+ case 0:
+ bright_maxlvl = 7;
+ printk(TPACPI_INFO
+ "detected a 8-level brightness capable ThinkPad\n");
+ break;
+ default:
+ printk(TPACPI_ERR
+ "Unsupported brightness interface, "
+ "please contact %s\n", TPACPI_MAIL);
+ tp_features.bright_unkfw = 1;
+ bright_maxlvl = b - 1;
+ }
+}
+
static int __init brightness_init(struct ibm_init_struct *iibm)
{
struct backlight_properties props;
quirks = tpacpi_check_quirks(brightness_quirk_table,
ARRAY_SIZE(brightness_quirk_table));
- /*
- * We always attempt to detect acpi support, so as to switch
- * Lenovo Vista BIOS to ACPI brightness mode even if we are not
- * going to publish a backlight interface
- */
- b = tpacpi_check_std_acpi_brightness_support();
- if (b > 0) {
+ /* tpacpi_detect_brightness_capabilities() must have run already */
+
+ /* if it is unknown, we don't handle it: it wouldn't be safe */
+ if (tp_features.bright_unkfw)
+ return 1;
+ if (tp_features.bright_acpimode) {
if (acpi_video_backlight_support()) {
if (brightness_enable > 1) {
printk(TPACPI_NOTICE
return 1;
}
- if (b > 16) {
- printk(TPACPI_ERR
- "Unsupported brightness interface, "
- "please contact %s\n", TPACPI_MAIL);
- return 1;
- }
- if (b == 16)
- tp_features.bright_16levels = 1;
-
/*
* Check for module parameter bogosity, note that we
* init brightness_mode to TPACPI_BRGHT_MODE_MAX in order to be
}
/* Safety */
- if (thinkpad_id.vendor != PCI_VENDOR_ID_IBM &&
+ if (!tpacpi_is_ibm() &&
(brightness_mode == TPACPI_BRGHT_MODE_ECNVRAM ||
brightness_mode == TPACPI_BRGHT_MODE_EC))
return -EINVAL;
if (tpacpi_brightness_get_raw(&b) < 0)
return 1;
- if (tp_features.bright_16levels)
- printk(TPACPI_INFO
- "detected a 16-level brightness capable ThinkPad\n");
-
memset(&props, 0, sizeof(struct backlight_properties));
- props.max_brightness = (tp_features.bright_16levels) ? 15 : 7;
+ props.max_brightness = bright_maxlvl;
+ props.brightness = b & TP_EC_BACKLIGHT_LVLMSK;
ibm_backlight_device = backlight_device_register(TPACPI_BACKLIGHT_DEV_NAME,
NULL, NULL,
&ibm_backlight_data,
"or not on your ThinkPad\n", TPACPI_MAIL);
}
- ibm_backlight_device->props.brightness = b & TP_EC_BACKLIGHT_LVLMSK;
+ /* Added by mistake in early 2007. Probably useless, but it could
+ * be working around some unknown firmware problem where the value
+ * read at startup doesn't match the real hardware state... so leave
+ * it in place just in case */
backlight_update_status(ibm_backlight_device);
vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_BRGHT,
} else {
seq_printf(m, "level:\t\t%d\n", level);
seq_printf(m, "commands:\tup, down\n");
- seq_printf(m, "commands:\tlevel <level>"
- " (<level> is 0-%d)\n",
- (tp_features.bright_16levels) ? 15 : 7);
+ seq_printf(m, "commands:\tlevel <level> (<level> is 0-%d)\n",
+ bright_maxlvl);
}
return 0;
int level;
int rc;
char *cmd;
- int max_level = (tp_features.bright_16levels) ? 15 : 7;
level = brightness_get(NULL);
if (level < 0)
while ((cmd = next_cmd(&buf))) {
if (strlencmp(cmd, "up") == 0) {
- if (level < max_level)
+ if (level < bright_maxlvl)
level++;
} else if (strlencmp(cmd, "down") == 0) {
if (level > 0)
level--;
} else if (sscanf(cmd, "level %d", &level) == 1 &&
- level >= 0 && level <= max_level) {
+ level >= 0 && level <= bright_maxlvl) {
/* new level set */
} else
return -EINVAL;
static int volume_alsa_vol_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
+ tpacpi_disclose_usertask("ALSA", "set volume to %ld\n",
+ ucontrol->value.integer.value[0]);
return volume_alsa_set_volume(ucontrol->value.integer.value[0]);
}
static int volume_alsa_mute_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
+ tpacpi_disclose_usertask("ALSA", "%smute\n",
+ ucontrol->value.integer.value[0] ?
+ "un" : "");
return volume_alsa_set_mute(!ucontrol->value.integer.value[0]);
}
tp_features.second_fan = 0;
fan_control_desired_level = 7;
- TPACPI_ACPIHANDLE_INIT(fans);
- TPACPI_ACPIHANDLE_INIT(gfan);
- TPACPI_ACPIHANDLE_INIT(sfan);
+ if (tpacpi_is_ibm()) {
+ TPACPI_ACPIHANDLE_INIT(fans);
+ TPACPI_ACPIHANDLE_INIT(gfan);
+ TPACPI_ACPIHANDLE_INIT(sfan);
+ }
quirks = tpacpi_check_quirks(fan_quirk_table,
ARRAY_SIZE(fan_quirk_table));
if (acpi_disabled)
return -ENODEV;
+ /* It would be dangerous to run the driver in this case */
+ if (!tpacpi_is_ibm() && !tpacpi_is_lenovo())
+ return -ENODEV;
+
/*
* Non-ancient models have better DMI tagging, but very old models
* don't. tpacpi_is_fw_known() is a cheat to help in that case.
(thinkpad_id.ec_model != 0) ||
tpacpi_is_fw_known();
- /* ec is required because many other handles are relative to it */
- TPACPI_ACPIHANDLE_INIT(ec);
+ /* The EC handler is required */
+ tpacpi_acpi_handle_locate("ec", TPACPI_ACPI_EC_HID, &ec_handle);
if (!ec_handle) {
if (is_thinkpad)
printk(TPACPI_ERR
return 0;
}
+static void __init thinkpad_acpi_init_banner(void)
+{
+ printk(TPACPI_INFO "%s v%s\n", TPACPI_DESC, TPACPI_VERSION);
+ printk(TPACPI_INFO "%s\n", TPACPI_URL);
+
+ printk(TPACPI_INFO "ThinkPad BIOS %s, EC %s\n",
+ (thinkpad_id.bios_version_str) ?
+ thinkpad_id.bios_version_str : "unknown",
+ (thinkpad_id.ec_version_str) ?
+ thinkpad_id.ec_version_str : "unknown");
+
+ BUG_ON(!thinkpad_id.vendor);
+
+ if (thinkpad_id.model_str)
+ printk(TPACPI_INFO "%s %s, model %s\n",
+ (thinkpad_id.vendor == PCI_VENDOR_ID_IBM) ?
+ "IBM" : ((thinkpad_id.vendor ==
+ PCI_VENDOR_ID_LENOVO) ?
+ "Lenovo" : "Unknown vendor"),
+ thinkpad_id.model_str,
+ (thinkpad_id.nummodel_str) ?
+ thinkpad_id.nummodel_str : "unknown");
+}
/* Module init, exit, parameters */
static struct ibm_init_struct ibms_init[] __initdata = {
{
- .init = thinkpad_acpi_driver_init,
.data = &thinkpad_acpi_driver_data,
},
{
/* Driver initialization */
+ thinkpad_acpi_init_banner();
+ tpacpi_check_outdated_fw();
+
TPACPI_ACPIHANDLE_INIT(ecrd);
TPACPI_ACPIHANDLE_INIT(ecwr);
tpacpi_inputdev->name = "ThinkPad Extra Buttons";
tpacpi_inputdev->phys = TPACPI_DRVR_NAME "/input0";
tpacpi_inputdev->id.bustype = BUS_HOST;
- tpacpi_inputdev->id.vendor = (thinkpad_id.vendor) ?
- thinkpad_id.vendor :
- PCI_VENDOR_ID_IBM;
+ tpacpi_inputdev->id.vendor = thinkpad_id.vendor;
tpacpi_inputdev->id.product = TPACPI_HKEY_INPUT_PRODUCT;
tpacpi_inputdev->id.version = TPACPI_HKEY_INPUT_VERSION;
tpacpi_inputdev->dev.parent = &tpacpi_pdev->dev;
}
+
+ /* Init subdriver dependencies */
+ tpacpi_detect_brightness_capabilities();
+
+ /* Init subdrivers */
for (i = 0; i < ARRAY_SIZE(ibms_init); i++) {
ret = ibm_init(&ibms_init[i]);
if (ret >= 0 && *ibms_init[i].param)
git.openpandora.org / pandora-kernel.git / blobdiff